As her Head Jesus Christ was surrounded by those who loved and honored Him and those who hated and despised Him, so His Body the Church is surrounded by those who love and honor her and by those who hate and despise her. Among the latter are the enemies within. These enemies are much more dangerous to people than external enemies for they confuse the true faith and muddle the true Faith, seeking if it were possible to destroy the Church once and for all. We know they will not succeed but will make strong attempts.
In modern times, since the early 1900's. we have had patriarchs who were enemies within the Church. During the period of upheaval in Greece, between the royalists and the Venuzelists, a stranger to Orthodoxy and truth, Meletios Metaxakis from Crete and relative of Venuzelis became archbishop of Athens and later when the political climate changed, he was deposed from that position.
In July of 1935, after six days in the throes of death, Meletios died, being one of the most scandalous bishops in the history of the Church. He attempted to change the traditions of the Church, such as changing feast days to fall on Sundays, do away with fasting days, allow married priests who became widowers to remarry; eliminate celibacy requirements, thus establishing a married episcopate, a common date for Pascha, and the adoption of the new calendar. While still Archbishop of Athens, Metaxakis with others went to England to seeking unity of Orthodoxy with the Anglican Church. However Orthodoxy will not unite with any other group for she is the Church, but she welcomes those outside to be baptized and come inside, if they desire salvation and eternal life.
In 1921 Metaxakis after being vested took part in an Anglican Service, bowed with the Anglicans in prayer, kissed their altar, preached and later blessed those who were present. He also recognized the validity of Anglican orders, being a scoundrel, he left nothing holy untouched. His countless actions were anti-Orthodox, forbidden by the Church and the sacred Canons as well as by Holy Scripture. Such actions are treated by the Church with deposition of the guilty cleric.